CBSE Class 8 Science Nitrogen Cycle

Q.

Which of the following elements is essential for the synthesis of amino acids, proteins and nucleic acids? 



Q.

Inert nitrogen can be fixed into usable forms by

A Atmospheric fixation

B Industrial fixation

C Biological fixation

 



Q.

Which of the following plants can contribute to biological nitrogen fixation along with Rhizobium?

 



Q.

What is ‘X’ and ‘Y’ in the given process?

 



Q.

 

Denitrification cannot occur in the absence of the bacteria

 

 



Q.

Which of the following elements is essential for the synthesis of amino acids, proteins and nucleic acids? 



Q.

Inert nitrogen can be fixed into usable forms by

A Atmospheric fixation

B Industrial fixation

C Biological fixation

 



Q.

Which of the following plants can contribute to biological nitrogen fixation along with Rhizobium?

 



Q.

What is ‘X’ and ‘Y’ in the given process?

 



Q.

 

Denitrification cannot occur in the absence of the bacteria

 

 



Q.

Which of the following elements is essential for the synthesis of amino acids, proteins and nucleic acids? 



Q.

Inert nitrogen can be fixed into usable forms by

A Atmospheric fixation

B Industrial fixation

C Biological fixation

 



Q.

Which of the following plants can contribute to biological nitrogen fixation along with Rhizobium?

 



Q.

What is ‘X’ and ‘Y’ in the given process?

 



Q.

 

Denitrification cannot occur in the absence of the bacteria

 

 



Q.

Which of the following elements is essential for the synthesis of amino acids, proteins and nucleic acids? 



Q.

Inert nitrogen can be fixed into usable forms by

A Atmospheric fixation

B Industrial fixation

C Biological fixation

 



Q.

Which of the following plants can contribute to biological nitrogen fixation along with Rhizobium?

 



Q.

What is ‘X’ and ‘Y’ in the given process?

 



Q.

 

Denitrification cannot occur in the absence of the bacteria

 

 



Q.

Which of the following elements is essential for the synthesis of amino acids, proteins and nucleic acids? 



Q.

Inert nitrogen can be fixed into usable forms by

A Atmospheric fixation

B Industrial fixation

C Biological fixation

 



Q.

Which of the following plants can contribute to biological nitrogen fixation along with Rhizobium?

 



Q.

What is ‘X’ and ‘Y’ in the given process?

 



Q.

 

Denitrification cannot occur in the absence of the bacteria

 

 



Nitrogen Fixation

Steps involved in nitrogen cycle

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